Sensitivity of Antarctic freshwater algae to salt stress
assessed by fast chlorophyll fluorescence transient.

J 2013

Sensitivity of Antarctic freshwater algae to salt stress assessed by fast chlorophyll fluorescence transient.

MIGUEL VILUMBRALES, David, Kateřina SKÁCELOVÁ and Miloš BARTÁK

Basic information

Original name

Sensitivity of Antarctic freshwater algae to salt stress assessed by fast chlorophyll fluorescence transient.

Name in Czech

Senzitivita antarktických sladkovodních řas vůči stresu solí posouzená metodou rychlé indukční kinetiky fluorescence chlorofylu.

Authors

MIGUEL VILUMBRALES, David (724 Spain, belonging to the institution), Kateřina SKÁCELOVÁ (203 Czech Republic, belonging to the institution) and Miloš BARTÁK (203 Czech Republic, guarantor, belonging to the institution)

Edition

Czech Polar Reports, Brno, Masarykova univerzita, 2013, 1805-0689

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

stránka časopisu CZECH POLAR REPORTS

RIV identification code

RIV/00216224:14310/13:00070542

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.5817/CPR2013-2-17

Keywords (in Czech)

Klebsormidium Zygnema OJIP fotosyntéza ostrov Jamese Rosse jezero Monolith

Keywords in English

Klebsormidium sp. Zygnema sp. OJIP photosynthesis James Ross Island Monolith Lake

Abstract

ORIG CZ

V originále

In this study, we investigated the effects of salt stress (2 mM NaCl) on excitation energy transfer from light harvesting complexes to photosystem II (PS II) in two Antarctic algal species: Klebsormidium sp. and Zygnema sp. Short-term salt stress led to a significant changes in the shape of chlorophyll fluorescence transient (OJIP). Analyses of the polyphasic fluorescence transients (OJIP) showed that the fluorescence yield at the phases J, I and P declined considerably with the time of exposition to salt stress. In both experimental species, OJIP transients reached lowest values of chlorophyll fluorescence signal after 30/60 min. of NaCl exposition. Then, OJIP shape and chlorophyll fluo- rescence showed species-specific recovery and rised towards original values (about 2/3 of untreated control). Analyses of chlorophyll fluorescence parameters derived from OJIPs showed that salt stress led to a decrease in the maximal efficiency of PS II photo- chemistry (FV/FM) in Zygnema sp. but not Klebsormidium sp. The results indicated that the probability of excitation energy transfer before and beyond QA, and the yield of electron transport beyond QA is limited by salt-induced stress in Zygnema sp. In addition, salt stress resulted in a decrease in the photosynthetic electron transport per PS II reaction center, but both increase and decrease in the trapping per PS II reaction center was found. Performace index (PIabs) was affected negatively in Zygnema sp. but possitively Klebsormidium sp. indicating that the latter species was more resistant to salt stress than Zygnema sp.

In Czech

Stres solí byl posuzován pomocí rychlé indukční kinetiky fluorescence chlorofylu OJIP. Bylo uskutečněno mezidruhové srovnání mezi řasami Zygnema sp. a Klebsormidium sp.

Links

1-7/2009-14, interní kód MU

Name: Pokročilé metody v bioklimatologii a ekologické fyziologii rostlin, aplikace ve výuce a výzkumu na MU Brno, včetně mzdových nákladů a odvodů na sociální a zdravotní pojištění

Investor: South-Moravian Region

Files attached

Vilumbrales_et_al_2013_Czech_Polar_Reports.pdf

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Citovat

MIGUEL VILUMBRALES, David, Kateřina SKÁCELOVÁ and Miloš BARTÁK. Sensitivity of Antarctic freshwater algae to salt stress assessed by fast chlorophyll fluorescence transient. (Sensitivity of Antarctic freshwater algae to salt stress assessed by fast chlorophyll fluorescence transient). Czech Polar Reports. Brno: Masarykova univerzita, 2013, vol. 3, No 2, p. 163 - 172. ISSN 1805-0689. Available from: https://dx.doi.org/10.5817/CPR2013-2-17.

@article{1136518,
   author = {Miguel Vilumbrales, David and Skácelová, Kateřina and Barták, Miloš},
   article_location = {Brno},
   article_number = {2},
   doi = {http://dx.doi.org/10.5817/CPR2013-2-17},
   keywords = {Klebsormidium sp. Zygnema sp. OJIP photosynthesis James Ross Island Monolith Lake},
   language = {eng},
   issn = {1805-0689},
   journal = {Czech Polar Reports},
   title = {Sensitivity of Antarctic freshwater algae to salt stress assessed by fast chlorophyll fluorescence transient.},
   url = {http://www.sci.muni.cz/CPR/},
   volume = {3},
   year = {2013}
}

TY  - JOUR
ID  - 1136518
AU  - Miguel Vilumbrales, David - Skácelová, Kateřina - Barták, Miloš
PY  - 2013
TI  - Sensitivity of Antarctic freshwater algae to salt stress assessed by fast chlorophyll fluorescence transient.
JF  - Czech Polar Reports
VL  - 3
IS  - 2
SP  - 163 - 172
EP  - 163 - 172
PB  - Masarykova univerzita
SN  - 18050689
KW  - Klebsormidium sp. Zygnema sp. OJIP photosynthesis James Ross Island Monolith Lake
UR  - http://www.sci.muni.cz/CPR/
L2  - http://www.sci.muni.cz/CPR/
N2  - In this study, we investigated the effects of salt stress (2 mM NaCl) on excitation energy transfer from light harvesting complexes to photosystem II (PS II) in two Antarctic algal species: Klebsormidium sp. and Zygnema sp. Short-term salt stress led to a significant changes in the shape of chlorophyll fluorescence transient (OJIP). Analyses of the polyphasic fluorescence transients (OJIP) showed that the fluorescence yield at the phases J, I and P declined considerably with the time of exposition to salt stress. In both experimental species, OJIP transients reached lowest values of chlorophyll fluorescence signal after 30/60 min. of NaCl exposition. Then, OJIP shape and chlorophyll fluo- rescence showed species-specific recovery and rised towards original values (about 2/3 of untreated control). Analyses of chlorophyll fluorescence parameters derived from OJIPs showed that salt stress led to a decrease in the maximal efficiency of PS II photo- chemistry (FV/FM) in Zygnema sp. but not Klebsormidium sp. The results indicated that the probability of excitation energy transfer before and beyond QA, and the yield of electron transport beyond QA is limited by salt-induced stress in Zygnema sp. In addition, salt stress resulted in a decrease in the photosynthetic electron transport per PS II reaction center, but both increase and decrease in the trapping per PS II reaction center was found. Performace index (PIabs) was affected negatively in Zygnema sp. but possitively Klebsormidium sp. indicating that the latter species was more resistant to salt stress than Zygnema sp.
ER  -

MIGUEL VILUMBRALES, David, Kateřina SKÁCELOVÁ and Miloš BARTÁK. Sensitivity of Antarctic freshwater algae to salt stress assessed by fast chlorophyll fluorescence transient. (Sensitivity of Antarctic freshwater algae to salt stress assessed by fast chlorophyll fluorescence transient). \textit{Czech Polar Reports}. Brno: Masarykova univerzita, 2013, vol.~3, No~2, p.~163 - 172. ISSN~1805-0689. Available from: https://dx.doi.org/10.5817/CPR2013-2-17.

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